300-400 posts a week? That seems impossible, constructive posts any way. How can anybody possibly do that many & live a normal life, have a job etc? My eyes couldn't handle that long staring at a computer screen.
It is possible though you need to only post when you really have something to say. Im sure most of them dont post that way and think there are easy riches.
I somewhat understand the change but it would have been better when they would have allowed it on a case by case basis. I mean someone posting great posts is a good thing for the campaign. They could replace some places of bad posters and would earn more and pay less with the campaign that way.